Reversible switching of InP nanowire growth direction by catalyst engineering

J. Wang, S.R. Plissard, M.A. Verheijen, L.F. Feiner, A. Cavalli, E.P.A.M. Bakkers

Research output: Contribution to journalArticleAcademicpeer-review

95 Citations (Scopus)
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Abstract

We demonstrate high yield vapor–liquid–solid (VLS) growth of 100-oriented InP nanowire arrays. The highest yield (97%) is obtained when the catalyst droplet is filled with indium prior to nanowire nucleation to the equilibrium composition during nanowire growth. Using these 100 wires as a template we can reversibly switch between a 100 and a 111 growth direction by varying the indium content of the droplet. Modeling VLS growth by a kinetic nucleation model indicates that the growth direction is governed by the liquid–vapor interface energy that is strongly affected by the indium concentration in the catalyst droplet.
Original languageEnglish
Pages (from-to)3802-3806
Number of pages5
JournalNano Letters
Volume13
Issue number8
DOIs
Publication statusPublished - 2013

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